Improvement in rock-drilling machines



. eets sheetl. 0. CLARK & JIILUTTER.

ROCK-DRILLING MACHINE.

Patented Jun 20, 1876.

Innnbm Mn/fgs as ,Mw

N,FETERS. PHOTO-LITHOGRAPHER, WASHINGTON. D c- 2 Sheets-Sheet 2.

o. CLARKE 24 I; UTTER. ROCK-DRILLING MACHINE.

NQ 178,9O9 Patented June 20,1876.

A JEJ N-.FETERS, FHOTO LITHOGRAFHER, WASHINGTON, D C.

UNITED STATES PATENT OFFICE.

ORLANDO oLARKE Ann IsAAo u'rrnn, OF ROCKFORD, ILLINOIS.

"IMPROVEMENT IN ROCK-DRILLING MACHINES.

Specification formingfpart of .Letters Patent No. 178,909 dated June 20, 1876; application filed April 6, 1876. v

To all whom it may concern Be it known that we, ORLANDO CLARKE and IsAAo UT' lER -Of the city of Rockford, county of Winnebago, ;and Stateof Illinois, have invented certain new and useful Improvements in Well-Drilling Machines, which improvements are fully setforth in the-following specification, reference being had .to the accompanying .drawings.

The object of our invention is, .to improve the machines employed ;to operate the-drill in well-drilling machines, the drills employed being of that class known in theart as the churn-drill, and .our vinvention consists of the devices and combinations, and arrangement of devioes, represented in the. accompa- ,nying drawings, in which- Figure 1 is a plan view of our improved machine. Fig. 2 isa side elevation. Fig. 3-isan enlarged view of one of the sprocket-wheels,

longitudinal VOIlilQitl-SBGtlOHzQf the-same. Fig.

Sis a front elevation, and Fig. 9a rear end elevation, of the frame.

In the drawings, A. are sills, .beams,po s ts,

and'girts, of suitable material, of :propersize and form, framed andfirmly bolted together in the manner shown, forming a rectangular. frame, as represented in the figures. This constitutes the main frame of:ourv impro.ved.drill- B is a mast .of suitable mate-f ing-machine. rial, and of proper dimensions,.firmly secured in a vertical position to the .front end of the main frame, and is vfitted centrally :on its face with grooved-faced-sheaves a,b,and c, to revolve on-pin-bearings. O is a lever, composed of a long and short beam, placed-parallel to each other, forming an open space be- .tween them, and at oneendare framed intoa transverse roller, 0, and near-theend of the short beam are fitted with .a'block between them, at which point they are firmly held inplace by. a bolt passing transversely through the beams and block. The ends of the roller 0 are fitted with journals that have their bearings in suitable boxes, secured to the upper side of the side sills, near the front end of the main frame, in such a manner as to permit of an upand-down movement of the freeend of the lever. This lever isfitted with a groovedfaced sheave, d, placed betweenthe beams and fitted to revolve ona pin passed through the beams and sheave. Thelever is provided with a series of holes forthe purpose of changing the position of the sheave nearer to orfarther fromthelfulcruin of the lever, to increase or lessen the leverage. D is a spool of-suitable constructiomfitted to revolve in hearings on the upper side of the upper .beams,.near thev front end of the -.main frame. F is a rope Wound on spool D, from which it is passed oversheaveain the upperend of mast B,thence undersheaves b and d andover-sheave 0, from which its free end hangs in front-ofthe mast,

andto which adrill, U, of proper construction,

isattached in the usual mannerot' attaching drills to such machines. The object of em ploying-the sheave a plaoed 'high in the-mastis to I reduce the lateral 'angle of the rope, when wound, toward the ends of the spool, which insuresa more perfectwinding on thespool, less chafing, and consequently greater durability of the rope.

From the foregoing description it .Willbe seenthat if the lever G bein the positiomrepresented in Fig. 2,.and free to rise, thedrill .woulddrop from the force of gravity, and, if

the operation of the lever be continued, a

churning motion would be imparted .tothe drill.

f is a shaft, having its hearings on innain frameforward of spool D,;and is fitted .with a pinion, f, theteeth of whichengage the teeth of wheel D on the shaft of spool D, and vby means of ,the winch f the rope B may be wound on or unwound from the spool, for the purpose ofgraising or lowering the drill, and a pawl, g, engages the teeth of wheel D, which servestohold the rope froinnnwinding. The pawl g-can be operated fromthe .front of the machineby means of a rod, g. The headh of spool D is grooved on its periphery, which receives the friction-band -h,- one end of which islooped on shaft f, and its other end isscrewit with the prime mover.

threaded, and enters the screw-threaded center of handwheel h, by means of which the friction-band h is made to operate as a trio tion-brake on both the shaft f and spool D for the purpose of lowering the drill, and to hold the spool to prevent the rope. from unwinding when operating the drill. The shaft of spool D is also fitted on one end with a sprocket-wheel, D.- F is a spool of suitable construction fitted to revolve in bearings on the under side of the upper beams of the main frame, between the shaft f and thefront end of the machine. F is a rope wound on spool F, from which it is passed over a groovedfaced sheave, F, fitted to revolve Onpin-bearing on the mast, and from which its free end depends, to which a bucket, to, of any suitable construction is attached. The projecting end of the shaft of spool F is fitted to receive the winch f, by means of which the spool F may be turned in either direction for the purpose of lowering and raising the bucket to remove the debris from the well, out by theaction of the drill. a The shaft of spool F is-also fitted with a grooved-faced sheave, Gr. H is a shaft fitted to revolve in hearings on the rear end of the main frame, having the clutching device *5 fixed to its projecting end, and is provided with ears forming part of a universal- .joint connection ofa tumbling-rod, to connect The shaft 11 is provided with lever-arms I, fitted with rollers I, which, as the lever-arms revolve, come in contact with the free end of the lever O, depressing it and causing the drill U, attached to the free end of the rope E, to rise, and, as the armsI revolve, will pass over the end of the lever U, permitting it to rise and the drill to drop, thus imparting a churning motion to the drill by means of the revolving arms. K is a sprocket-wheel loosely mounted on shaft H, having its hub fitted in clutch form to engage the fixed clutch t. The hub of this sprocketwheel is also provided with an annular groove for the reception of the yoke k, the stem of which is pivoted at its lower end to the sill of the main frame, and is also fitted near the yoke with a vertical elongated slot, to receive the crank-formed end of the shipping rod 70', which is supported in hearings on the main frame, and extends forward of the frame, where it is bent horizontally with its end weighted; as at It", to hold the clutch locked in position either in or outof gear, which is accomplished by the crank of shipping-rod is resting on the bottom of the vertical slot in the stem of yoke 70. 1

This device is more clearly shown in the enlarged views at Figs. 3 and 4, in which the dotted lines show the positionof the parts 'when out of gear. The sprocket-wheels K and D are connected by a rag chain belt, K, and is employed for the purpose of raising the drill out of the well by the power employed 'to operate the drill. This is accomplished by first turning the stop L in Fig. l in the position seen at L, Fig. 2, which holds the lever C out of the action of the operating lever; arms I, and by turning the weighted end 70" of shipping-rod 7c outward, the clutches K and v1 will be thrown into gear, and motion from the shaft H will be imparted to the spool D by means of the rag-chain connection, causing it to revolve in the direction to wind up the rope E, and raise the drill thereto attached from the well. ()n the shaft H is mounted a gear-wheel, m, the teeth ofwhich engage the teeth of a pinion, a, on shaft N, supported in bearings on the main frame forward of shaft H. A balance-wheel, O, is mounted on the shaft N for the purpose of equalizing the velocity of the machine in overcoming the unequal resistance in its movement in operating the drill.

p is a friction-cone secured on the outwardprojecting end of shaft N. R is a grooved faced sheave loosely fitted on shaft N. The outer end of its hub is of hollow cone form, to receive the cone '19 forming a friction-clutch. The inner end of the hub of sheave It is provided with an annular groove, to receive the upturned endof shipping-rod s, which is supported in bearings on the mainframe, and extends to the forward end of the machine, where its end is bent inward, forming a lever, by means of which the sheave may be forced outward on the friction-cone, to impart motion to the sheave by frictionalcontact; The sheaves G and R are connected by a cable chain-belt P for imparting motion to the spool E for the purpose ofelevating the bucket u attached to the free end of the rope F by the powereurployed to operate the machine; This device is also employed 'for lowering the bucket. by regulating the friction by means of the shipping-rods; T is a brake-lever pivoted to the rear end of the frame, and extends to the forward end of the machine, passing under the balance-wheel O, at'which point it, is fitted with a brake-shoe, t, in such a manner that when the free end of the lever is raised the brakeshoe t will act upon-the periphery of the balance-wheel, for the purpose of stopping the machine when required.

From the foregoing description it will be seen that both the drill and the bncket,attachedto their respective ropes, may be raised by the power employed. to operate the drill, and lowered by means of the friction devices, or they may be raised or lowered by hand, by means of the winch f. t

For the purpose of enabling one attendant to readily control the operations of all parts of the machine, we have constructed our machine with the'controlling-levern g, 70', s, and T, all extending to the front end of the machine, which, together With the hand-wheels h and winch f, are all within easy reach of the attendant at the drill. -Our drilling-ma chine is also constructed and arranged in such a manner'that it may be changed to per. form all its different functionswithout interfering with the prime mover, themotion of which may be continuous. This Weaccomplish by means of the stop L, shipping-rod 70, s, and g, and the hand-wheel h and winch f, these parts constructed, arranged, and operating as hereinahove stated. We havedescribed our machine asawell-drilling machine, but do not wish to'confine ourselves to this particular purpose, as it is evident that it may be used as a quarry or mining drill, or for other similar purposes.

We are aware that well-drilling machines, in some respects similar to the above-described machines, have been constructed and used, among which is the machine patented to J. E. B. Morgan and Henry Kelly, of Osage, Iowa; and some of the devices employed in the patent issued to Robert David Napier, of Limehouse, England, may be found in the above description; therefore, so far as these machines, .by virtue of said Letters Patent, are rightfully the property of the said patentees, we hereby enter and make this our disclaimer to any of the foregoing, the same bein g of right the property of the above-named patentees; but

We claim as our inventionl. The combination, in a well-drilling machine, of the mast B fitted with sheaves a, b, and 0, operating lever O fitted with sheave d, and rope E from the spool D, passing over and under the sheaves a, b, c, and d, as described, for the purpose of imparting a churning motion to a drill attached to the free end of the rope E by means of a down-and-up movement of the free end of the lever G, as hereinbefore set forth.

2. The mast B fitted with sheaves a, b, and 0, lever O fitted with sheaves at, and rope E, employed as described, in combination with leverarms I secured to shaft H, for the purpose of operating the lever O, to impart a churningmotion to a drill attached to the free end of v the rope- E, as and for the purpose hereinbefore set forth.

3. The weighted shippin g-rod k and pivoted yoke 70, in combination with the sprocketwheel K, with clutch-formed hub, for the purpose of shipping and unshipping the clutch, and holding it in or out of gear, substantially as hereinbefore set forth.

4. The combination of the pall g, operatingrod g extending to the front end of the machine, and gear-wheel D on the shaft of spool D, to hold the spool, to'prevent the rending of rope E, as hereinbefore set forth.

,5. The friction-band h looped on shaft f, in combination with spool D and hand-wheel h operating as a friction brake on both the shaft f and spool D, for the purpose of lowering the drill when attached to the free end of the rope E, as hereinbefore set forth.

6. The combination of the sheave R, frictioncone 1), chain-belt P, spool F, and shippingrod 8, for the purpose of operating a bucket attached to the free end of rope F, substantially as and for the purpose hereinbefore set forth.

8. The stop L, shipping-rods k, s, and g, hand-wheel h", and winch f, these parts constructed, arranged, and operating, substantially as hereinbefore set forth, for the purpose of changing the machine to perform its different and separate functions without stopping or interfering with the continuous mo tion of the primemover employed to operate the machine.

9. In a'well-drilling machine, substantially as described, the sheave a in mast B, as herein described, for the purpose of lessening the lateral angle of the rope when wound toward the ends of the spool, as and for the purpose 

